US965185A - Telegraph and other pole. - Google Patents

Description

J. I'. HICKMAN. TELEGRAPH AND OTHER POLE. APPLIOATION FILED AUG.17, 1909.

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JOI-IN IE'. HICKMAN, OF TAMPA, FLORIDA.

TELEGRAPI-I AND OTHER POLE.

To all whom it may concern:

Be it known that I, J oHN F. I-IICKMAN, a citizen of the United States, residing at Tampa, in the county of Hillsborough and State of Florida, have invented certain new and useful Improvements in Telegraph and other Poles, of which the following is a specification.

The object of my invention is the produc tion of a trolley, telephone, telegraph or other pole of a Vskeleton or sectional character which shall be of relatively cheap iirst cost, light in weight, durable, adapted to eectively resist strains or pressure from all directions, and which can easily be repaired, should it become necessary, by the removal and substitution of a part or parts.

lVith this object iu view, my invention consists in certain novelties of construction and combinations of parts hereinafter set forth and claimed.

The accompanying drawing illustrates three examples of the physical embodiment of the invention constructed according to the best modes I have so far devised for the practical application of the principle.

Figure 1 is a view in perspective of a skeleton or sectional trolley, telephone, or telegraph pole showing my invention. Fig. 2 is an edge view of a similar pole of slightly modied construction. Fig. 3 is a view in perspective of a third example. Fig. 4 is a cross section of Fig. 3 on line w-oo.

The pole is comprised of a base A, a lower section B, and an upper or top section C. The base A may consist of wood, metal or reinforced concrete and be of any suitable length and shape. Vhen wood is employed, it should be of select heart timber. The base when set in the ground should project a suitable distance and the opposite sides be chamfered or beveled at 1, l, as shown, and so as to form seats at 2, 2. The lower section comprises two obliquely disposed plates 3, 3 of wood or metal or both, their lower ends tting the beveled surfaces 1, l and the seats 2, 2 of the base and secured to the same by bolts 4 passed through the plates and base, as shown. The upper section C consists of a piece of wood or metal of a truncated wedge shape, with its lower or thicker end 5 located between the top ends of the plates 3, 3 and secured by bolts, as shown. When the section is of wood, and it is desired to strengthen it, thin metallic Specification of Letters Patent.

Patented July 2e, 1910.

Application filed August 17, 1909. Serial No. 513,284.

plates 7, 7 are applied to opposite surfaces and secured by screws S to the wood.

For relatively short poles, the construction of parts described constitutes a very strong, light and durable structure adapted to withstand pressure from any direction. As is obvious, the lower ends of the plates lit the seats 2, 2 so the plates cannot move edgewise or rot-ate relative to the base, and each plate serves as a brace-when pressure is applied to the surface of the opposite plate.

For long poles it may be desirable to brace the lower section (though braces may be used in relatively short poles) and I have shown means for bracing it.

In Fig. 2 the opposite inner surfaces of the plates may be grooved, as at 9, 9, and the edges of a block of wood 10 be seated in the grooves, and bolts or rods l1 be passed through the plates preferably beneath the blocks and nuts upon the bolts be tightcned, clamping the parts together. These blocks and rods are to be applied at intervals in series, the number depending upon the desired degree of rigidity to be secured. In addition to the blocks I may employ bracing rods as 12, with threaded ends to receive nuts 13. The rods pass fiom the central part of the edge of one block diagonally to and over the opposite edge of the adjacent block and the threaded ends are passed through holes in one or both plates, washers 14 and the nuts being then placed in position and the nuts screwed tight. One rod 12 may be used but I prefer to employ two rods crossing each other between two blocks, thus forming a lattice or Whipple truss, as shown in Fig. 1. The trussing may extend the entire length of the lower section or for a part of its length only.

Fig. 3 shows another method of trussing the lower section. Two tapering pieces 15, 15 of wood or metal are located between the opposite edges of the plates and securely held in place, as by bolts 16, or other suitable means, passed through the edges of the two plates 3, 3 and clamped by nuts, thus forming a tapering boX girder. The plates 3, 3, may taper from the base to the upper section, or they may be of the saine width throughout.

From the foregoing description it will be seen that I have produced a pole adapted for a variety of uses, which is of comparatively cheap first cost, light in weight and Strong; which can be readily removed from the base and also repaired when necessary by the substitution of a part.

Alhat I claim is 1t A pole comprising a base, a lower section secured to the base and formed of two plates inclined each to the other, and an upper section of a tapering shape secured between the ends of the plates opposite the base.

2. A pole comprising a base, a lower section secured to the base and formed of two plates inclined each to the other, and an upper section of wood strengthened by a metallic plate and secured between the ends of the lower section.

3. A pole comprising,` a base, a lower section secured to the base and formed of two plates inclined each to the other with stilening` or trussing means, and an upper section oi a tapering` shape secured between the ends of the plates opposite the base.

l. A pole comprising` a base, a lower section secured to the base and formed of two plates inclined each to the other with spaced blocks between the same, and an upper section of a tapering shape secured between the ends of the plates opposite the base.

5. A pole comprising a base, a lower section secured to the base and formed of two plates inclined each to the other with spaced blocks and a bracing rod passing from the edge of one block to another between the plates, and an upper section secured between the ends of the plates opposite the base.

6. A pole comprising a base, a lower section secured to the base and formed of two tapering plates inclined each to the other,

and an upper section of a tapering truncated shape secured between the ends of the plates opposite the base.

In testimony whereof I a'HiX my signature in presence of two witnesses.

' JOHN r. HICKMAN.

itnessesz v H. S. HAMPTON, MARY NEwsoM.

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